CodeIgniter3中从IMAP邮件内容提取键值对数组求助

Hey there! The problem with using explode("-", $emailBodyContent) is that it splits every single hyphen it finds—including the ones that aren't meant to separate your target key-value pairs. That's why you ended up with jumbled keys and values in your resulting array.

Instead, we can use a targeted regular expression to accurately identify each key-value pair, even for keys with spaces like Terms And Conditions. Here's how to implement this in CodeIgniter3:

Step 1: Clean Up the HTML Content (if needed) #

First, if your ['body']['html'] contains HTML tags, strip them out to avoid messing up the regex matching:

// Get the raw HTML content from your IMAP response
$emailHtml = $yourImapResponse['body']['html'];
// Strip HTML tags to get clean plain text
$cleanContent = strip_tags($emailHtml);

Step 2: Use Regex to Extract Key-Value Pairs #

We'll use preg_match_all() to find all valid key-value pairs. The regex is built to match multi-word keys followed by -, then capture the value until the next key pair or the end of the string:

// Define the regex pattern to target valid key-value pairs
$pattern = '/(\w+(?: \w+)*) - ([^-]+?(?= \w+(?: \w+)* - |$))/';

// Run the regex on the cleaned content
preg_match_all($pattern, $cleanContent, $matches);

// Build your target associative array
$resultArray = [];
foreach ($matches[1] as $index => $key) {
    // Trim extra whitespace from both key and value for cleanliness
    $resultArray[trim($key)] = trim($matches[2][$index]);
}

// Check the final result
print_r($resultArray);

What the Regex Does #

Let's break down the pattern to understand why it works:

• (\w+(?: \w+)*): Matches keys with one or more words (e.g., Title, Customer, Terms And Conditions)
• -: Explicitly matches the hyphen with spaces on either side—this ensures we only split on the intended key-value separators
• ([^-]+?(?= \w+(?: \w+)* - |$)): Captures the value, stopping either when it hits the next [Key] - pattern or the end of the string (non-greedy matching prevents over-capturing)

Expected Output #

Running this code will give you exactly the array you're looking for:

Array
(
    [Title] => Title Goes Here
    [Customer] => Mr Abc Xyz
    [Terms And Conditions] => You must accept our terms and conditions before sign in for any deals and offers. You can refer our detailed information about this.
)

This approach works seamlessly in CodeIgniter3 since it uses core PHP functions that are fully supported in the framework.

内容的提问来源于stack exchange，提问作者SRK